/**
 * Simple DDS data parser for compressed 2D textures.
 *
 * Copyright (c) 2013-2019 Alex Szpakowski
 *
 * This software is provided 'as-is', without any express or implied
 * warranty.  In no event will the authors be held liable for any damages
 * arising from the use of this software.
 *
 * Permission is granted to anyone to use this software for any purpose,
 * including commercial applications, and to alter it and redistribute it
 * freely, subject to the following restrictions:
 *
 * 1. The origin of this software must not be misrepresented; you must not
 *    claim that you wrote the original software. If you use this software
 *    in a product, an acknowledgment in the product documentation would be
 *    appreciated but is not required.
 * 2. Altered source versions must be plainly marked as such, and must not be
 *    misrepresented as being the original software.
 * 3. This notice may not be removed or altered from any source distribution.
 *
 *
 * Enums and structs copied from Microsoft.
 * http://msdn.microsoft.com/en-us/library/bb943991.aspx
 **/

#ifndef DDS_INFO_H
#define DDS_INFO_H

#include <stdint.h>

namespace dds
{
namespace dxinfo
{

enum DDPF
{
	DDPF_ALPHAPIXELS = 0x000001,
	DDPF_ALPHA       = 0x000002,
	DDPF_FOURCC      = 0x000004,
	DDPF_RGB         = 0x000040,
	DDPF_YUV         = 0x000200,
	DDPF_LUMINANCE   = 0x020000,
	DDPF_BUMPDUDV    = 0x080000,
};

enum D3D10ResourceDimension
{
	D3D10_RESOURCE_DIMENSION_UNKNOWN   = 0,
	D3D10_RESOURCE_DIMENSION_BUFFER    = 1,
	D3D10_RESOURCE_DIMENSION_TEXTURE1D = 2,
	D3D10_RESOURCE_DIMENSION_TEXTURE2D = 3,
	D3D10_RESOURCE_DIMENSION_TEXTURE3D = 4
};

enum DXGIFormat
{
	DXGI_FORMAT_UNKNOWN                     = 0,

	DXGI_FORMAT_R32G32B32A32_TYPELESS       = 1,
	DXGI_FORMAT_R32G32B32A32_FLOAT          = 2,
	DXGI_FORMAT_R32G32B32A32_UINT           = 3,
	DXGI_FORMAT_R32G32B32A32_SINT           = 4,

	DXGI_FORMAT_R32G32B32_TYPELESS          = 5,
	DXGI_FORMAT_R32G32B32_FLOAT             = 6,
	DXGI_FORMAT_R32G32B32_UINT              = 7,
	DXGI_FORMAT_R32G32B32_SINT              = 8,

	DXGI_FORMAT_R16G16B16A16_TYPELESS       = 9,
	DXGI_FORMAT_R16G16B16A16_FLOAT          = 10,
	DXGI_FORMAT_R16G16B16A16_UNORM          = 11,
	DXGI_FORMAT_R16G16B16A16_UINT           = 12,
	DXGI_FORMAT_R16G16B16A16_SNORM          = 13,
	DXGI_FORMAT_R16G16B16A16_SINT           = 14,

	DXGI_FORMAT_R32G32_TYPELESS             = 15,
	DXGI_FORMAT_R32G32_FLOAT                = 16,
	DXGI_FORMAT_R32G32_UINT                 = 17,
	DXGI_FORMAT_R32G32_SINT                 = 18,

	DXGI_FORMAT_R32G8X24_TYPELESS           = 19,
	DXGI_FORMAT_D32_FLOAT_S8X24_UINT        = 20,
	DXGI_FORMAT_R32_FLOAT_X8X24_TYPELESS    = 21,
	DXGI_FORMAT_X32_TYPELESS_G8X24_UINT     = 22,

	DXGI_FORMAT_R10G10B10A2_TYPELESS        = 23,
	DXGI_FORMAT_R10G10B10A2_UNORM           = 24,
	DXGI_FORMAT_R10G10B10A2_UINT            = 25,

	DXGI_FORMAT_R11G11B10_FLOAT             = 26,

	DXGI_FORMAT_R8G8B8A8_TYPELESS           = 27,
	DXGI_FORMAT_R8G8B8A8_UNORM              = 28,
	DXGI_FORMAT_R8G8B8A8_UNORM_SRGB         = 29,
	DXGI_FORMAT_R8G8B8A8_UINT               = 30,
	DXGI_FORMAT_R8G8B8A8_SNORM              = 31,
	DXGI_FORMAT_R8G8B8A8_SINT               = 32,

	DXGI_FORMAT_R16G16_TYPELESS             = 33,
	DXGI_FORMAT_R16G16_FLOAT                = 34,
	DXGI_FORMAT_R16G16_UNORM                = 35,
	DXGI_FORMAT_R16G16_UINT                 = 36,
	DXGI_FORMAT_R16G16_SNORM                = 37,
	DXGI_FORMAT_R16G16_SINT                 = 38,

	DXGI_FORMAT_R32_TYPELESS                = 39,
	DXGI_FORMAT_D32_FLOAT                   = 40,
	DXGI_FORMAT_R32_FLOAT                   = 41,
	DXGI_FORMAT_R32_UINT                    = 42,
	DXGI_FORMAT_R32_SINT                    = 43,

	DXGI_FORMAT_R24G8_TYPELESS              = 44,
	DXGI_FORMAT_D24_UNORM_S8_UINT           = 45,
	DXGI_FORMAT_R24_UNORM_X8_TYPELESS       = 46,
	DXGI_FORMAT_X24_TYPELESS_G8_UINT        = 47,

	DXGI_FORMAT_R8G8_TYPELESS               = 48,
	DXGI_FORMAT_R8G8_UNORM                  = 49,
	DXGI_FORMAT_R8G8_UINT                   = 50,
	DXGI_FORMAT_R8G8_SNORM                  = 51,
	DXGI_FORMAT_R8G8_SINT                   = 52,

	DXGI_FORMAT_R16_TYPELESS                = 53,
	DXGI_FORMAT_R16_FLOAT                   = 54,
	DXGI_FORMAT_D16_UNORM                   = 55,
	DXGI_FORMAT_R16_UNORM                   = 56,
	DXGI_FORMAT_R16_UINT                    = 57,
	DXGI_FORMAT_R16_SNORM                   = 58,
	DXGI_FORMAT_R16_SINT                    = 59,

	DXGI_FORMAT_R8_TYPELESS                 = 60,
	DXGI_FORMAT_R8_UNORM                    = 61,
	DXGI_FORMAT_R8_UINT                     = 62,
	DXGI_FORMAT_R8_SNORM                    = 63,
	DXGI_FORMAT_R8_SINT                     = 64,
	DXGI_FORMAT_A8_UNORM                    = 65,

	DXGI_FORMAT_R1_UNORM                    = 66,

	DXGI_FORMAT_R9G9B9E5_SHAREDEXP          = 67,

	DXGI_FORMAT_R8G8_B8G8_UNORM             = 68,
	DXGI_FORMAT_G8R8_G8B8_UNORM             = 69,

	DXGI_FORMAT_BC1_TYPELESS                = 70,
	DXGI_FORMAT_BC1_UNORM                   = 71,
	DXGI_FORMAT_BC1_UNORM_SRGB              = 72,

	DXGI_FORMAT_BC2_TYPELESS                = 73,
	DXGI_FORMAT_BC2_UNORM                   = 74,
	DXGI_FORMAT_BC2_UNORM_SRGB              = 75,

	DXGI_FORMAT_BC3_TYPELESS                = 76,
	DXGI_FORMAT_BC3_UNORM                   = 77,
	DXGI_FORMAT_BC3_UNORM_SRGB              = 78,

	DXGI_FORMAT_BC4_TYPELESS                = 79,
	DXGI_FORMAT_BC4_UNORM                   = 80,
	DXGI_FORMAT_BC4_SNORM                   = 81,

	DXGI_FORMAT_BC5_TYPELESS                = 82,
	DXGI_FORMAT_BC5_UNORM                   = 83,
	DXGI_FORMAT_BC5_SNORM                   = 84,

	DXGI_FORMAT_B5G6R5_UNORM                = 85,
	DXGI_FORMAT_B5G5R5A1_UNORM              = 86,
	DXGI_FORMAT_B8G8R8A8_UNORM              = 87,
	DXGI_FORMAT_B8G8R8X8_UNORM              = 88,

	DXGI_FORMAT_R10G10B10_XR_BIAS_A2_UNORM  = 89,
	DXGI_FORMAT_B8G8R8A8_TYPELESS           = 90,
	DXGI_FORMAT_B8G8R8A8_UNORM_SRGB         = 91,
	DXGI_FORMAT_B8G8R8X8_TYPELESS           = 92,
	DXGI_FORMAT_B8G8R8X8_UNORM_SRGB         = 93,

	DXGI_FORMAT_BC6H_TYPELESS               = 94,
	DXGI_FORMAT_BC6H_UF16                   = 95,
	DXGI_FORMAT_BC6H_SF16                   = 96,

	DXGI_FORMAT_BC7_TYPELESS                = 97,
	DXGI_FORMAT_BC7_UNORM                   = 98,
	DXGI_FORMAT_BC7_UNORM_SRGB              = 99,

	DXGI_FORMAT_FORCE_UINT                  = 0xffffffffUL
};

struct DDSPixelFormat
{
	uint32_t size;
	uint32_t flags;
	uint32_t fourCC;
	uint32_t rgbBitCount;
	uint32_t rBitMask;
	uint32_t gBitMask;
	uint32_t bBitMask;
	uint32_t aBitMask;
};

struct DDSHeader
{
	uint32_t size;
	uint32_t flags;
	uint32_t height;
	uint32_t width;
	uint32_t pitchOrLinearSize;
	uint32_t depth;
	uint32_t mipMapCount;
	uint32_t reserved[11];

	DDSPixelFormat format;

	uint32_t caps1;
	uint32_t caps2;
	uint32_t caps3;
	uint32_t caps4;
	uint32_t reserved2;
};

struct DDSHeader10
{
	DXGIFormat dxgiFormat;
	D3D10ResourceDimension resourceDimension;

	uint32_t miscFlag;
	uint32_t arraySize;
	uint32_t reserved;
};

} // dxinfo
} // dds

#endif // DDS_INFO_H
